Notice: The Short Interest Tracker is based on data sourced wholly from the FCA's daily short positions report. The information on this website is provided for information only. We don't provide any warranty as to the accuracy of the information on this site and it should not be relied upon in any way.

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We have changed the way we show data on this page. It now shows the date that short positions were changed rather than the date on which they were disclosed to the FCA.

Positions changed on Friday 19 July

Company Fund % short Change Date changed
AGGREKO PLC AQR Capital Management, LLC 0.92% 0.10% 19 Jul 2013
ARM HOLDINGS PLC QVT Financial LP 0.52% 0.0% 19 Jul 2013
DIALIGHT PLC Ennismore Fund Management Limited 1.43% 0.05% 19 Jul 2013
Fenner PLC Marshall Wace LLP 0.80% 0.01% 19 Jul 2013
Fidessa Group PLC ODEY ASSET MANAGEMENT LLP 0.74% 0.05% 19 Jul 2013
G4S Egerton Capital (UK) LLP 0.77% 0.12% 19 Jul 2013
Hansteen Holdings PLC CQS (UK) LLP 0.90% 0.01% 19 Jul 2013
International Consolidated Airlines Group S.A. BG Master Fund PLC 0.41% -0.12% 19 Jul 2013
International Consolidated Airlines Group S.A. CQS (UK) LLP 0.53% 0.0% 19 Jul 2013
International Consolidated Airlines Group S.A. Sculptor Capital Management Europe Limited 1.26% 0.10% 19 Jul 2013
International Consolidated Airlines Group S.A. Susquehanna International Holdings LLC 1.00% 0.01% 19 Jul 2013
KAZ Minerals PLC Marshall Wace LLP 0.52% 0.03% 19 Jul 2013
LANCASHIRE HOLDINGS LTD Sculptor Capital Management Europe Limited 0.79% -0.01% 19 Jul 2013
LONDON MINING PLC BlackRock Investment Management (UK) Limited 0.65% 0.15% 19 Jul 2013
MARKS & SPENCER GROUP PLC AKO Capital LLP 1.39% -0.02% 19 Jul 2013
NEW WORLD RESOURCES PLC BlackRock Investment Management (UK) Limited 0.79% -0.02% 19 Jul 2013
Petropavlovsk PLC Marshall Wace LLP 1.45% 0.19% 19 Jul 2013
RS Group Plc BlackRock Investment Management (UK) Limited 0.59% -0.01% 19 Jul 2013
The Weir Group PLC Citadel Europe LLP 0.65% 0.11% 19 Jul 2013
The Weir Group PLC Maverick Capital, Ltd. 0.88% 0.13% 19 Jul 2013